CN205781037U - A kind of ultralow temperature dual-seal and lumen are from pressure relief ball valve - Google Patents
A kind of ultralow temperature dual-seal and lumen are from pressure relief ball valve Download PDFInfo
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- CN205781037U CN205781037U CN201620729058.4U CN201620729058U CN205781037U CN 205781037 U CN205781037 U CN 205781037U CN 201620729058 U CN201620729058 U CN 201620729058U CN 205781037 U CN205781037 U CN 205781037U
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- valve barrel
- right valve
- lumen
- spheroid
- barrel
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Abstract
A kind of ultralow temperature dual-seal and lumen are from pressure relief ball valve, including left valve barrel, right valve barrel, left valve barrel, right valve barrel lumen in spheroid is set, right valve barrel arranges right valve seat, left valve barrel, right valve seat and spheroid contact surface are inlaid with sealing ring, and sealing ring and spheroid form sealing pair, and right valve seat is cascaded surface with the axially contact end face of right valve barrel, it is provided with general plug molectron between cascaded surface I and right valve barrel, between cascaded surface II and right valve barrel, is provided with flexible member.The beneficial effects of the utility model are: under ultralow-temperature operation conditions, valve is provided first to seal by the general plug molectron in right valve barrel, once medium leaks in lumen at general plug, and spheroid also can be pressed at the sealing surface of left valve barrel by spring force and pressure medium, it is achieved that dual-seal.Simultaneously when lumen overstocks full, owing to general plug opening can complete pressure release back to spheroid, lumen medium power at general plug, it is ensured that the safety and reliability that valve operates under worst cold case.
Description
Art
This utility model relates to a kind of ball valve, particularly to a kind of ultra-low temperature ball valve.
Background technology
Ball valve owing to having that volume is little, simple in construction, the feature such as easy to maintenance and sealing surface of seat normal with ball seal face
At contact condition, being difficult to by medium erosion, service life is long, is used widely in every profession and trade.
Existing ultra-low temperature ball valve, only relies at valve seat two sealing rings and realizes sealing, under worst cold case, due to
Encapsulant is size reduction because line expands, and causes sealing ring to reduce, and valve body leaks with the valve seat place of cooperation, and lumen is easy
Build pressure causes blast, increases the danger of Subzero valve.
Utility model content
In order to overcome the disadvantages mentioned above of existing ball valve, this utility model provides one can realize dual-seal and lumen from letting out
Pressure ball valve.
This utility model solves its technical problem and be employed technical scheme comprise that, a kind of ultralow temperature dual-seal and lumen are certainly
Pressure relief ball valve, including left valve barrel, right valve barrel, left valve barrel, right valve barrel lumen in spheroid is set, also include valve rod, valve rod and ball
Body connects and extends above from lumen, and valve rod is supported with spacing by valve gap, arranges right valve seat, left valve on right valve barrel
Body, right valve seat and spheroid contact surface are inlaid with sealing ring, and sealing ring forms sealing pair with spheroid, and right valve seat is axial with right valve barrel
Contact end face is cascaded surface, is provided with general plug molectron between cascaded surface I and right valve barrel, and general plug molectron is by general plug and left and right two
Individual block forms, and general plug opening, back to spheroid, is provided with flexible member between cascaded surface II and right valve barrel.
The beneficial effects of the utility model are: under ultralow-temperature operation conditions, and valve is provided by the general plug molectron in right valve barrel
First seals, and after valve uses for a long time, failure conditions occurs at general plug, and once medium leaks to lumen at general plug
In, spheroid also can be pressed at the sealing surface of left valve barrel by spring force and pressure medium, it is achieved that dual-seal.
Simultaneously when lumen overstocks to design load, owing to general plug opening is back to spheroid, lumen medium power can be complete at general plug
Become pressure release, improve ball valve sealing property under ultralow-temperature operation conditions, it is ensured that the safety that valve operates under worst cold case
And reliability.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment；
In Fig. 2 Fig. 1, A goes out enlarged drawing.
In figure: 1. left valve barrel；2. right valve barrel；3. spheroid；The rightest valve seat；5. sealing ring；The most general plug molectron；
7. spring；8. valve gap；9. valve rod；10. lumen；11. cascaded surfaces I；12. cascaded surfaces II；13. general plugs；14. blocks.
Detailed description of the invention
As shown in Figure 1, 2, a kind of ultralow temperature dual-seal and lumen are from pressure relief ball valve, including left valve barrel 1, right valve barrel 2, left
Valve body 1, right valve barrel 2 lumen 10 in spheroid 3 is set, also include that valve rod 9, valve rod 9 and spheroid 3 link and stretch above lumen 10
Going out, valve rod 9 is supported with spacing by valve gap 8, arranges right valve seat 4, left valve barrel 1, right valve seat 4 and spheroid 3 on right valve barrel 2
Contact surface is inlaid with sealing ring 5, and sealing ring 5 and spheroid 3 form sealing pair, and right valve seat 4 with the axially contact end face of right valve barrel 2 is
Cascaded surface, is provided with general plug molectron 6 between cascaded surface I 11 and right valve barrel 2, general plug molectron 6 is by general plug 13 and two, left and right
Block 14 forms, and two blocks 14 can make general plug 13 uniform force, and the most general plug 13 expands, general plug 13 opening back to spheroid 3,
Spring 7 it is provided with between cascaded surface II 12 and right valve barrel 2.
Claims (1)
1. ultralow temperature dual-seal and lumen are from a pressure relief ball valve, including left valve barrel, right valve barrel, in left valve barrel, right valve barrel
Arranging spheroid in chamber, also include valve rod, valve rod is connected with spheroid and extends above from lumen, valve rod be supported by valve gap and
Spacing, described right valve barrel arranges right valve seat, left valve barrel, right valve seat and spheroid contact surface are inlaid with sealing ring, sealing ring with
Spheroid forms sealing pair, it is characterised in that: the axially contact end face of described right valve seat and right valve barrel is cascaded surface, cascaded surface I with
Being provided with general plug molectron between right valve barrel, described general plug molectron is made up of general plug and two, left and right block, and described general plug is opened
Mouth, back to spheroid, is provided with flexible member between cascaded surface II and right valve barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620729058.4U CN205781037U (en) | 2016-07-12 | 2016-07-12 | A kind of ultralow temperature dual-seal and lumen are from pressure relief ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620729058.4U CN205781037U (en) | 2016-07-12 | 2016-07-12 | A kind of ultralow temperature dual-seal and lumen are from pressure relief ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205781037U true CN205781037U (en) | 2016-12-07 |
Family
ID=58122093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620729058.4U Active CN205781037U (en) | 2016-07-12 | 2016-07-12 | A kind of ultralow temperature dual-seal and lumen are from pressure relief ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205781037U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764146A (en) * | 2019-03-14 | 2019-05-17 | 江苏神通阀门股份有限公司 | A kind of double-seal ball valve structure with pressure relief device |
| CN110410522A (en) * | 2019-08-27 | 2019-11-05 | 江苏江恒阀业有限公司 | A kind of high pressure valve seat of fixed ball valve |
| CN111255909A (en) * | 2020-01-17 | 2020-06-09 | 浙江大学 | Ultra-low temperature ball valve body cavity abnormity-preventing boosting device with self-closing function and method thereof |
-
2016
- 2016-07-12 CN CN201620729058.4U patent/CN205781037U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764146A (en) * | 2019-03-14 | 2019-05-17 | 江苏神通阀门股份有限公司 | A kind of double-seal ball valve structure with pressure relief device |
| CN110410522A (en) * | 2019-08-27 | 2019-11-05 | 江苏江恒阀业有限公司 | A kind of high pressure valve seat of fixed ball valve |
| CN111255909A (en) * | 2020-01-17 | 2020-06-09 | 浙江大学 | Ultra-low temperature ball valve body cavity abnormity-preventing boosting device with self-closing function and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |